Companies were dispatched a report of a man trapped under a vehicle on Red Oak Road in the Split Rock section of Lake Harmony. Ladder and Engine 17 arrived to find a man with his hand trapped between the front tire and the wheel well. He was in the process of changing the tire when the jack slipped and caused the tire to pivot sideways, pinning his hand between the tire and wheel well. Crews used a floor jack to lift the truck up, freeing the tire and the victims hand. The extrication was complete within 5 minutes. The victim was then turned over to EMS.